package com.atguigu.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.constant.ProductConstant;
import com.atguigu.common.to.SkuHasStockVo;
import com.atguigu.common.to.SkuReductionTo;
import com.atguigu.common.to.SpuBoundsTo;
import com.atguigu.common.to.es.SkuEsModel;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.product.entity.*;
import com.atguigu.gulimall.product.feign.CouponFeignService;
import com.atguigu.gulimall.product.feign.SearchFeignService;
import com.atguigu.gulimall.product.feign.WareFeignService;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.*;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;


import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;
    @Autowired
    SpuImagesService spuImagesService;
    @Autowired
    AttrService attrService;
    @Autowired
    ProductAttrValueService productAttrValueService;
    @Autowired
    SkuInfoService skuInfoService;
    @Autowired
    SkuImagesService skuImagesService;
    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeignService;
    @Autowired
    BrandService brandService;
    @Autowired
    CategoryService categoryService;

    @Autowired
    SearchFeignService searchFeignService;

    @Autowired
    public WareFeignService wareFeignService;
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<>()
        );

        return new PageUtils(page);
    }

    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {

        //1.保存Spu的基本信息 pms_spu_info
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,infoEntity);

        this.saveBaseSpuInfo(infoEntity);

        //2.保存Spu的描述图片 pms_spu_info_desc
        List<String> decript = vo.getDecript();

        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();

        descEntity.setSpuId(infoEntity.getId());
        descEntity.setDecript(String.join(",",decript));
        spuInfoDescService.saveSpuInfoDesc(descEntity);

        //3.保存spu的图片集  pms_spu_images

        List<String> images = vo.getImages();
        spuImagesService.saveImages(infoEntity.getId(),images);
        

        //4.保存Spu的规格参数  pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {

            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();

            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity id = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(id.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(infoEntity.getId());
            return valueEntity;

        }).collect(Collectors.toList());
        productAttrValueService.saveProductAttr(collect);


        //5.保存spu的积分信息，gulimall_sms->sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundsTo spuBoundsTo = new SpuBoundsTo();
        BeanUtils.copyProperties(bounds,spuBoundsTo);
        spuBoundsTo.setSpuId(infoEntity.getId());
        R r1 = couponFeignService.saveSpuBounds(spuBoundsTo);
        if (r1.getCode()!=0){
            log.error("远程保存Spu优惠信息、积分信息失败！");
        }


        //5.保存当前spu对应的所有sku信息
        List<Skus> skus = vo.getSkus();
        //5.1 sku的基本信息 pms_sku_info
        
        if(skus!=null&& skus.size()>0){

            skus.forEach(item->{

                String defaultImg = "";
                for(Images image:item.getImages()) {

                    if(image.getDefaultImg()==1){
                        defaultImg = image.getImgUrl();
                    }
                }
          
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                
                skuInfoService.saveSkuInfo(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();


                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());

                    return skuImagesEntity;

                }).filter(entity->
                    !StringUtils.isEmpty(entity.getImgUrl())
                ).collect(Collectors.toList());

                //5.2 sku的图片信息 pms_sku_images
                //TODO:没有图片链接的，无需保存
                skuImagesService.saveBatch(imagesEntities);
                //5.3 sku的销售属性信息 pms_sku_sale_attr_value
                List<Attr> attr = item.getAttr();

                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);

                    return attrValueEntity;

                }).collect(Collectors.toList());

                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);


                //5.4 sku的优惠信息
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);

                if(skuReductionTo.getFullCount()>0||skuReductionTo.getFullPrice().compareTo(new BigDecimal("0"))==1){

                    R r = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r.getCode()!=0){
                        log.error("远程保存Sku优惠信息、积分信息失败！");
                    }
                }


            });

        }





    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {

        this.baseMapper.insert(infoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){

            wrapper.and((w)->
                w.eq("id",key).or().like("spu_name",key)
        );

        }

        String status = (String) params.get("status");
        if(!StringUtils.isEmpty(status)){

            wrapper.eq("publish_status",status);

        }
        String brandId = (String) params.get("brandId");
        if(!StringUtils.isEmpty(brandId)&&!"0".equalsIgnoreCase(brandId)){

            wrapper.eq("brand_id",brandId);

        }

        String catalogId = (String) params.get("catalogId");
        if(!StringUtils.isEmpty(catalogId)&&"0".equalsIgnoreCase(catalogId)){


            wrapper.eq("catalog_id",catalogId);
        }


        IPage<SpuInfoEntity> page = this.page(new Query<SpuInfoEntity>().getPage(params),
                wrapper);


        return new PageUtils(page);
    }

    @Override
    public void up(Long spuId) {

        List<SkuEsModel> uoProducts = new ArrayList<>();


        //1.查出当前spuid对应的所有sku信息，品牌的名字
        List<SkuInfoEntity> skus = skuInfoService.getSkuBySpuId(spuId);

        List<Long> skuIds = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());

        //TODO4、查询sku的所有可以用来检索的规格属性
        List<ProductAttrValueEntity> baseAttrs = productAttrValueService.baseAttrListForSpu(spuId);
        List<Long> attrIds = baseAttrs.stream().map(ProductAttrValueEntity::getAttrId
        ).collect(Collectors.toList());

        List<Long> searchAttrIds = attrService.selectSearchAttr(attrIds);

        Set<Long> idSet = new HashSet<>(searchAttrIds);

        List<SkuEsModel.Attrs> attrs = new ArrayList<>();

        List<SkuEsModel.Attrs> attrsList = baseAttrs.stream().filter(item ->
           idSet.contains(item.getAttrId())
        ).map(item -> {
            SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs1);
            return attrs1;
        }).collect(Collectors.toList());


        List<SkuEsModel> upProducts = skus.stream().map(sku -> {

            //组装需要的数据
            SkuEsModel skuEsModel = new SkuEsModel();

            BeanUtils.copyProperties(sku, skuEsModel);

            skuEsModel.setSkuPrice(sku.getPrice());
            skuEsModel.setSkuImg(sku.getSkuDefaultImg());
            //TODO1、发送远程调用，库存系统查询是否有库存

            Map<Long, Boolean> stockMap = null;

            try {
                R  r = wareFeignService.getSkuHasStock(skuIds);

                TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {

                };
                stockMap = r.getData(typeReference).stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId, SkuHasStockVo::getHasStock));

            } catch (Exception e) {
                log.error("远程调用库存查询出现问题：{}", e);
            }

            if (stockMap == null) {
                skuEsModel.setHasStock(true);
            } else {
                skuEsModel.setHasStock(stockMap.get(sku.getSkuId()));

            }

            //TODO2、热度评分
            skuEsModel.setHotScore(0L);

            //TODO3、查询品牌和分类的名字信息

            BrandEntity brand = brandService.getById(skuEsModel.getBrandId());
            skuEsModel.setBrandName(brand.getName());
            skuEsModel.setBrandImg(brand.getLogo());

            CategoryEntity category = categoryService.getById(skuEsModel.getCatalogId());

            skuEsModel.setCatalogName(category.getName());

            skuEsModel.setAttrs(attrsList);
            return skuEsModel;
        }).collect(Collectors.toList());

        //TODO5、将数据发送给es进行保存，gulimall-search

        R r = searchFeignService.productStatusUp(upProducts);

        if(r.getCode()==0){

            //远程调用成功

            //TODO:修改当前spu状态

            baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode(),ProductConstant.StatusEnum.SPU_UP.getMsg());



        }else {

            //远程调用失败
            //TODO:重复调用？接口幂等性，重试机制
        }


    }

    @Override
    public SpuInfoEntity getSpuInfoBySkuId(Long skuId) {
        SkuInfoEntity byId = skuInfoService.getById(skuId);
        Long spuId = byId.getSpuId();
        SpuInfoEntity spuInfoEntity = getById(spuId);

        return spuInfoEntity;
    }


}